Raising and lowering mechanism.



A. KADOW.

RAISING AND LOWERING MECHANISM APPLICATION FILED APR 12. I91].

MIA 53M m 2 1 Mm d EVA. H m a P A. KADOW.

RAISING AND LOWERING MECHANISM.

APPLICATION FILED APR. 12, I911.

Patented Aug. 31, [915.

mmws,

4 SHEETS-SHEET 2 A. KADOW.

RAISING AND LOWERING MECHANISM.

APPLICATION FILED APR. I2. 19H.

Patented Aug. 31, 1915.

4 SHEETS-SHEET 3.

A. KADOW.

RAISING AND LOWERING MECHANISM.

APPLICATION HLED APR. 12. I91].

Patented Mg. 31, 1915.

WI/III lllrl'l lild AUGUST KADOW', OF TOLEDO, CHIS, ASSIGNGE T0 THE 'WES'ELAKE MACHINE GQMPANY,

OF TOLEDO, OHIO, A CORPORATIGN 6F OHIQ.

memos.

Specification of Letters l etent.

iatented Ange. 3i, 1935.

Original application filed July e, 1910, Serial No. 570,621. Divided and this application filed. April 39., 1811. Serial No. 620,556.

To aZZ whom it may; concern:

Be it known that l, Ancosr Ksnow, a

citizen of the United States, residing at Toledo, in the'county ofihucas and State of Ohio, have invented certain new and useful Improvements in Etaising and Lowering Mechanism, of which the following is a specification.

My invention relates to improvements in raising and lowering mechanism and, while it may have a considerable range of utility, it is designed particularly for use in adjusting the height of heavy mechanisms.

- Thus, for example, as illustrated in the drawings, 1 have shown my invention embodied in a mechanism applied to a glass workin machine, whereby the machine may be rea ily adjusted with reference to the level of the metal in the glass pot or furnace.

The prime object of my invention is to provide such a mechanism whereby the level of the load may be readily adjusted with a minimum of power regardless of the weight of the load, so that one man can readily change the level of the load, especially where the load consists of heavy mechanism in which frequent adjustments oi the height of the load are required.

Another object of my invention is to providc such a mechanism which shall be strong, simple and reliable in operation.

Another object of my invention is to provide such a mechanism which shall be adaptable for application to a machine which is mounted on trucks, whereby it may be readily moved in a horizontal direction.

These and such other objects may appear are attained by invention, a convenient embodiment of which is shown in the accompanying drawings, in which Figure 1 is a side elevation oi: a glass worle ing machine fitted with my improvements. Fig. 2 is a horizontal section on the line 22 of Fig. 1, looking in the direction indicated by the arrows. Fig. 3 is a horizontal detail partly in section. Fig. 4 is a tlraginentary, vertical sectional view on the line of Fig. 1, looking in the direction indicated by the arrows. Fig. 5 is a vertical elevation oi the adjusting nut and gear. Fig. 6 is an enlarged detail of the parts immediately ccoperating with the adjusting nut and gear. Fig. 7 a perspective view of one of the brackets. Fi 8 is an enlarged, fragmentary, horizontal, sectional detail showing the mechanism immediately isting the adjusting nut and gear. Fig. 9 is an enlarged, horizontal, fragmentary detail through. the housing containing adjusting nut.

.Lilre characters of reference indicate the same parts in the several figures of the draw-- 'ings.

The presentapplication is a division of my application Serial l lo. 570,621 filed July 6, 1910 and the drawin s show my inv. as applied to the glass working shown in my application Serial No. 570,621.

A is the glass working machine, It is the glass furnace in which the working chamber is shown as filled with molten glass or metal from which lass is to be gatheredhy the gathering mechanism a, C is the base or bed plate upon which the glass working mechanism is mounted; 1) indicates one of the tracks upon which the entire machine is moved, the machine being mounted on the wheels E, E, E and F. lhe bed plate l) rests upon transverse shafts l and 2. These shafts are pivotally mounted in the levers 3, 3, and 4t, 4:, respectively. The lovers 3, 3, are fulcrumed upon the axle 5, which is sup ported by two of the wheels E. E, and the lovers 4, l, are fulcrumed upon the 6 oi the wheels E, F. Preferably the levers are pivot-ally i'uountcd on these axles, although this is a mechanical detail which can be varied as may be expedient. Each of the levers 3, 3, l, s, is provided at its inner extremity, that is, as shown in the drawing at the extremity of its long arm, with anti-friction roller 7. These anti friction rollers rest on castings or brackets 8. Beach oi these lu-aclrets 8 is fitted over a screw threaded rod. 9. rests upon a shoulder provided near the bottom end oi the rod and held in position in any suitable manner. as, for example, by means of a pin 10 errtending through the bracket 8 and rod 9 (Fig. 4%). These rods are held apart near their lower ends by a transverse spreader or rod 11 which is shown as extending through the lower ends of the screw threaded rods 9 and which preferably consists of two members longitudinally adjustable rclat to each other, as, for example, my means of the sleeve or iZlHl'kbllClilfi 12. Each end of the spreader 11 is provided with a collar 13 and. around one of the idlers 14 on the .it is secured either formed thereon or pinned thereto and also carries an idler 14:. The screws or rods 9, which thus support the long arms of the levers 3, L, are in turn supported in the following manner: On the base plate G are formed two flanges l l 'and 15, which are spaced apart from each other, and the inner horizontal faces of which are substantially parallel with each other. Threaded on each of the rods 9, between the flanges 1r and 15, is a nut 16, so that, but for the counterweights 17, which are supported in a manner to be described later, the threadedrods 9 and the load carried by them would be supportedby the nuts 16 and the flanges 14s.

But by properly counter-weighting the apparatus, there will be no appreciable weight upon either the nut 16 or the flanges 14;, and the nuts 16 merelyprovide a convenient means, when screwed one way or the other, for disturbing the equilibrium of the mechanism when it is desired to adjust the load to a different level.

Non-rotatably fitted to each nut 16 is a gear wheel 17, which meshes with a worm gear 18 supported by a bracket 19 attached to the flange 15.

The outer ends of the worm gear shafts 20 are supported in bearings 21 in brackets 22 and are provided with bevel gears 23,

I which mesh with bevel gears 24; on the trans verse shaft 25 supported in the bearings 26 in the brackets 22. One of the worm gear shafts 20 is coupled directly to an extension shaft 27 supported in hearings on a bracket 28. This extension shaft is provided with a bevel gear 23 which meshes with a bevel gear 30 on a shaft 31 fitted with a hand wheel 32. It will thus be seen that by rotating the hand wheel 32, the motion will be transmitted through the gears 30, 29, 24, 23 and-shaft 20 to the worm gears 18, the gear wheels 17 and the nuts 16. VVhereupon the nut 1.6 rotated upon the screw threaded, nonrotatable rods 9 will raise or lower the rods 9 asdcsired, thereby causing a corresponding raising or lowering of the levers 3, 4L and of the load carried thereby.

The Weight of the load supported on the lovers 3, a as above described is counter-balanced by weights 1'7. 'lhese weights, two in n umber, are arranged one on each side of the machine. Each weight is supported on the end of a rope 33 which passes over an idler'8. on the base plate (1, thence down spreader. 11, thence up to a point where to a bracket 35 on the base plate C. llhus it will. be seen that Whilethe weight of the machine transmitted through the levers 3, 4c and castings 8 tends to draw the screw-threaded rods 9 downwardly, the counter-weights 17. acting through the ropes 33, tend to raise the rods 9 and, acting through the castings 8 against the extreme ends of the long arms of the levers 3, 1, tend to lift the load. Thus, by which the counter-weights act, the weight of the entire machine can be exactly counterbalanced by relatively small weights, and the force applied through the nuts to change the level of the load need be only sufficient ,to overcome the equilibrium so established.

Therefore, the entire machine can be raised and lowered with but little eifort by rotating the hand wheel 32. Of course, if the arrangement of the levers be changed, the same result can be obtained by correspondingly changing the weight of the counterweights. So, also, the arrangement of counter-weights as to number is immaterial, since, in an obvious manner, a single counter weight may be used in place 01": two, or more than two may be used. These are merely minor details to meet varying conditions and shop convenience.

It will be observed that, by reason of the construction above described, although the equilibrium can be readily disturbed, nevertheless the parts are securely held in any adjusted position without any separate looking of the same. Of course, any suitable means ma be used to rotate the nuts, the arrangement described being merely a convenient and illustrative arrangement.

While I have thus described my invention in what I now consider to be its preferred form, various changes in detail will occur'as matters of expediency without departure from the principle of my invention, it being my intention and purpose to here claim broadly and in detail whatever is here shown and disclosed which is patentably new over the prior art.

As the present application is not concerned at all with the details of construction and operation of the glass working mechanism, it should be understood that A indicates any mechanical device for gathering metal and working the same into glass articles, and B indicates any suitable tank, pot

or glass furnace, although it will be recog nized that the mechanism shown, so far as it goes, is identical with the particular glass working machine shown in my said co-pending application Serial No. 570,621.

I claim:

1. The combination with a support, of a lever pivoted on said support, load carrying means supported by the lever, a counterweight, connecting means between said lever and counterweight whereby the load is counterbalanced, means engaging said connecting means for disturbing the balance so obtained, said means comprising a stem engaging said lever, a device longitudinally adjustable upon said stern, means for holding said device upon said stem in any adjusted position and means for holding said stem virtue of the leverage through against movement in the direction of the length thereof when said adjustable device is secured in any given position on said stem.

2. The combination with a support, of a lever pivoted on said support, load-carrying means carried by said lever, a counterweight, and connections between said counter-weight and said lever, said connections being carried by said load-carrying means, Wherebythe weight of the load-carrying means is counterbalanced.

3. The combination with supports, of levers mounted upon said supports respectively, load-carrying means "carried by said levers, a counter-weight, and connections carried by said load-carrying means whereby the 'load is balanced by the counterweight acting through said levers.

The combination with supports, of

r levers-pivotedon said supports, load-carrying means supported by the levers, counterweights, connections between saidd'evers and counter-weights whereby the load is counter-balanced, means for overcoming the balanee so obtained, said means comprising a screw-threaded stem engaging said levers, a

nut threaded upon said stem and'supported on said load-carrying means againsfl movement longitudinally of said stemyand means for rotating said nut.

5. Thecombination with supports, of levers pivoted on said supports, load-carrying means carried by said levers, brackets upon which the free ends of'said levers rest, counter-weightsl arranged to support said brackets so as to counterbalance the weight of the load, said counter-weights being supported by the load-carrying means, and means for moving said brackets vertically to vary the vertical adjustment of the loadcarrying means.

6. The combination with supports, of

i leverspivoted on said supports, a load-carti l) rying frame supported on said levers, brackets upon which the free ends of said levers rest, counter-Weights carried by said frame and arranged to' support said brackets to counterbalance the load on said frame, and means for disturbing such balance by moving the brackets vertically to vary the vertical position of said frame, said means comprising screw-threaded stems engaging said brackets respectively, and a nut threaded on'each of said stems, each nut being interposed between abutments connected with said frame.

7. The combination with a pair of supports, of a pair of levers pivotally mounted on each of said supports, the levers of each pair extending toward the levers of the other pair, a load-carrying platform supported by said four levers, counter-weights supported by said platform, brackets upon which the free ends of said levers rest, connections between the counter-weights and the brackets whereby said brackets are supported and the load is counterbalanced, and means for imparting vertical movement to said brackets whereby the vertical position offiaid load-carrying platform is varied at W1 8. The combination with two supports, of levers pivoted to said supports respectively, said levers extending toward each other, a load-carrying platform supported on said levers, a bracket upon which the free ends of said levers rest, means for supporting said bracket, said means comprising a counterweight, a wheel pivoted to said platform and a rope connected at one end to said platform and at the other end to said counterweight and passing over said Wheel, and means for varying the vertical position of said bracket and thereby vertically adj usting said platform, said means comprising a screw-threaded stem upon which said bracket is mounted and a nut threaded upon said stem and mounted between abutments connected with said platform.

vers pivoted to said supports, load-carrying means pivotally mounted on said levers, means carried by said load carrying means for raising and lowering the free ends of the levers so as to change the vertical position of the load-carrying means, and means for counter-balancing the load-carrying means against the hoisting means at varied vertical positions.

I AUGUST KADOW. Witnesses S. O. RICHARDSON, JR., R. A. BOTHWELL. 

